Counteracting device for pump-rods.



J. M. BORN. COUNTERACTING DEVICE FOR PUMP RODS. APPLICATION FILED MAR. 15. I918.

1,290,493. Patented Jan. "z, 1919.

FIG. 1.

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UNITED STATES PATENT OFFIC JULIUS M. BORN, OF ST.'PAUL, MINNESOTA.

GOUNTERAGTING DEVICE FOR PUMP-RODS.

Application filed March 15, 1918.

To all whom it may concern:

Be it known that I, JULIUS M. BORN, a citizen of the United *States, residing at St. Paul, in the county of Ramsey, 297 Dewey avenue, and State of Minnesota, have invented certain new and useful Improvements in counteracting Devices for Pump- Rods, of which the followingis a specification.

My invention relates to improvements in spring counteracting devices for the rods of pumps, the object being to render the starting and stopping of the pump elastic and to store up force in the down-stroke that will aid in the up-stroke of lifting the water.

To this end, my invention consists in the features of construction, combination and arrangement of parts hereinafter particularly described and claimed.

In the accompanying drawings forming part of this specification,

Figure 1 shows a side view of a pump fitted with my improvements,

Fig. 2 is a plan view of the lower portion of my apparatus, partly broken away and in section, and showing the pump rod in section, and

Fig. 3 is a side view of a modified form of my device shown attached.

Referring to the drawings, A represents the handle supporting portion of the pump, and B the pump rod.

In carrylng out my invention in my preferred form, I employ a base plate G, constructed of two members secured together as by bolts C and formed with the central opening I to loosely receive the pump rod. Supported by the bolts C are a pair of outwardly and upwardly extending arms D. A second pair of arms E have pivotal connection K at their outer ends with the lever arms D intermediate of the ends of said lever arms D', the inner ends of the lever arms E being pivotally connected with a clamp G by means of bolt G which bolts hold the clamp firmly in position upon the pump rod.

The lever arms D as shown, extend upwardly beyond the pivotal connections K and at their upper ends are connected by coil springs F with the said lever arms E. The position of the springs with reference to the lever arms E may be adjusted by means of a series of openings J, the ends of the springs being adapted to be secured in any selected ones of said openings.

Specification of Letters Patent.

Patented Jan. '7, 1919.

Serial No. 222,526.

The lever arms D are formed with slotted openings H in which the outer ends of the lever arms E are pivoted, whereby to ad- .mit of relative movement of the lever arms the pump rod in a position reversed to that shown inFig. 1. As will be evident in the adaptation shown in Fig. 3, the parts operate in the same manner as inFig. l, the only difference being that the lever arms D are pivoted to the clamp G and the lever arms J to the base plate C.

I also may as shown in Fig. 3, instead of using a pivot K, notch the ends of the lever arms J and fit said notched ends into the slots H of the lever arms D, said notched ends K forming a pivotable connection between the lever arms, answering the same purpose as the pivot K.

In use, the apparatus is attached to the pump rod as shown in Figs. 1 and 3. As the pump rod is lowered, carrying with it the supporting clamp G of the lever arms E, the lever arms E and D will be turned upon their pivots toward a position at right angles to a pump rod so that as the pump rod reaches the lower end of its movement the springs F stand extended.

As a result inthe upward movement of the pump rod the extended springs will exert pressure, restoring the parts to the position shown in Fig. 1 and assisting in the raising of the rod.

The springs thus in the downward movement of the pump rod store up a portion of the force of said downward movement to be exerted in the raising movement of the rod. By changing adjustment of the springs F with respect to the lever arms E, the amount of power stored up by the spring is likewise ad usted.

A particular advantage of the illustrated arrangement of lever arms D and E and springs F is that as the pump rod reaches the lower end of the stroke, the stretching of the springs becomes less, assisting in the ease of operation and in this respect constitutes a great improvement over other spring tioned levers and extending outwardly into pivoted relationship with the first mentioned rods, and a spring connection between said two pairs of levers at a point beyond said pivotal relationship.

2. In connection with a mmp and rod, a pair of levers loosely supported on the rod and extending upwardly and outwardly therefrom, a second pair of levers firmly se cured upon the rod above said first mentioned levers and extending outwardly into pivotal connection to the first mentioned rods, and an adjustable spring connection between said two pairs of levers at a point beyond said pivotal conneotion'oif the rods.

3. In combination with a pump and rod, a pair of upwardly and outwardly extendinglever arms loosely inclosing said pump rod at their lower ends, a pair of outwardly and downwardly extending lever arms pivotally secured upon said rod above said first mentioned arms and pivotally connected with the lower lever arms at a pointshort of the projecting endsof one set of the said lever arms, and springs connecting the end of the projecting lever arms with the 0pposed arms.

In testimony whereof I aflix my signature in presence of-two witnesses.

JULIUS M. BORN.

Witnesses:

GEORGE VOELKER, H. S. JOHNSON.

Copies of this patent may be obtained for five cents each, by addressing the Oommissioner'o!Patents,

Washington, D. 0. 

